Gas-burner



(No Model.)

J. MOHENRY.

GAS BURNER. No 386,485. Patented July 24, 1888.

lliz'zmeb'ses: 17104970201": 24). 0'. finimmm UNITED STATES PATENTOFFICE,

JOHN MOHENRY, OF CINCINNATI, OHIO.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 386,485, dated July 24,1888.

Application filed June 6,1887. Serial No. 240,425. (No model.)

To aZZ whom it may concern.-

Be it known that I, JOHN MOHENRY, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented a certain new and use ful Improvement in GasBurners,ofwhich the following is a specification.

The object of my invention is to provide a gas-burner in which heatedair is mingled with the burning gas in the most advantageous manner, andin which the amount of air audits point of contact with the flame may beregulated with due regard to the character of the gas, giving an intenselight without smoke; and the invention consists in combining with anArgand burner having a metallic air cylinder provided with perforations,through which the air is forced outwardly into the gas, a sliding bandadjustable in said cylinder.

In the drawings,Figure 1 is a front elevation of one of my improvedgas-burners and chimney. Fig. 2 is a vertical section of burner.

A is an Argand burner, having tubes A A to conduct the gas to the hollowannulus a,the upper surface of which is pierced with a circle of smallopenings, (t'a, through which the gas passes to be burned.

a" is a cut-off.

B is a hollow perforated metallic cylinder fitted tightly against thewalls of the central aperture, H, of the Argand, to allow access of airto the cylinder,and thence through the perforations b b into the insideof the flame. The upper end of the cylinder is provided with a cap, 1),preferably covering the entire top of the cylinder, so that the air isforced sidewise into the flame. \Vhile rising into this cylinder on theinside of the hollow flame the air becomes heated,so that it morereadily mingles with the burning gas and oxygenates it. The current ofair is regulated by a sliding metallic band, C, in the air-cylinder B.The cylinder 0 is caused to slide upon the inner surface of cylinder Bby a handle, 0, projecting below the burner, or any other convenientmeans. The burner is also provided with an annular perforated plate, D,which admits air to the outside of the flame and supports the chimney E,which is made bulbshaped to conform to the shape of the deflected flame.The perforations in the annular plate D are preferably smaller thanthose in the aircylinder, which are purposely made large enough to admitof lighting the gas without removing the chimney, so that by regulatingthe current to the inside of the flame with reference to the outercurrent perfect combustion is obtained.

The perforated cylinder being heated by the flame, serves to heat theair as it passes through it. The draft of air coming in contact with therising gas deflects the gas outward, thus preventing its direct contactwith the heated surface of the cylinder. This spreads the light to giveit the bulb shape, in which it is most effective, while by thus warmingthe air and mingling it with the gas, instead of directly heating thegas before it is oxygenated, I obtain more perfect combustion and moreluminous flame free from smoke. The flame being thus deflected heats theperforated plate D. The air rising through the plate is thus warmed. Theoutward current of air from the cylinder, by spreading the gas over thisperforated plate, enables the warm air rising through the perforatedplate D to be more perfectly mingled with it. The gas is thus subjectedto two currents of warm airone tending to spread it horizontally and theother rising vertically with it. \Vhen so spread, the former, being morepowerful than the latter, mainly determines the shape and position ofthe flame. \Vhere the gas is heated before being properly oxygenated,there is tendency to decompose it before ignition, and imperfectcombustion is the result. By deflecting the gas from the heated surfacewhile thoroughly mingling it with warm air in the manner described Iobtain a clear white highly-luminous flame, sufficiently spread to makeit very effective, while I am able, by means of the adjustable slide, toregulate the current according to the quality of gas used.

\Vhen a gas which is deficient in carbon is being burned, the bandshould be so placed as to prevent the passage of air through a greateror less number of the perforations, as may be required. If a gas is richin carbon, the band may be drawn entirely below the per forations. Bymeans of this band the air may be admitted to the upper or lower part ofthe flame,or to the entire flame, as maybe desired. cylinder, a seriesof gas-outlets surrounding lo I claim- 1 the base thereofland aperforated plate admit 1. In a gas-burner, the combination,with a tingair to the'outside of the gas-outlets, subhollow perforated cylinder, ofa band adjuststantially as and for the purpose specified.

5 able along said cylinder, and a series of "asoutlets surrounding thesame, substantial]; as JOHN MOHENRY' and for the purpose specified.Witnesses:

2. The combination of a perforated cylinder JAMES N. RAMSEY,

capped at the top,aband adjustable along said I AUGUST F. HERBSLEB;

